(TrendHunter.com) Yoshinoya is shaking things up by adding new Japanese Udon Noodles to its menu. Udon is a thick noodle made from wheat flour that's a staple of Japanese cuisine. The noodles can be prepared... (TrendHunter.com) Yoshinoya is shaking things up by adding new Japanese Udon Noodles to its menu. Udon is a thick noodle made from wheat flour that's a staple of Japanese cuisine. The noodles can be prepared...